Graphene-Based Light Sensing: Fabrication, Characterisation, Physical Properties and Performance.
Graphene-Based Light Sensing: Fabrication, Characterisation, Physical Properties and Performance.
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DOI：
10.3390/ma11091762
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发表时间：
2018-09-18
期刊：
影响因子：
--
通讯作者：
Russo S
中科院分区：
文献类型：
--
作者：
De Sanctis A;Mehew JD;Craciun MF;Russo S
石墨烯和石墨烯基材料具有优异的光学和电学性能，在光探测领域具有广阔的应用前景。然而，一些挑战阻碍了这些特性在商业设备中的充分利用。这些挑战包括基于石墨烯的光电探测器有限的线性动态范围（LDR），缺乏有效的光激发电荷的产生和提取，由于热载子效应导致的光活性结的涂布，大规模制造以及最终组成材料的环境稳定性。为了克服上述限制，已经探索了不同的方法来调整石墨烯的性质。一类新的基于石墨烯的器件已经出现，其中化学功能化，与光敏材料的杂化以及与其他2D材料形成异质结构导致性能，稳定性或多功能性得到改善。例如，石墨烯与FeCl的插层在环境条件下高度稳定，可用于定义具有前所未有的LDR特征的光活性结，而氧化石墨烯（GO）是一种非常可扩展和通用的材料，支持从UV到太赫兹频率的光探测。纳米粒子和量子点已被用于增强原始石墨烯的吸收，并由于光门效应而实现高增益。以同样的方式，由堆叠的石墨烯序列和层状过渡金属二硫族化合物制成的混合探测器使一类具有高增益和高响应性的设备成为可能。在这项工作中，我们将回顾功能化石墨烯和混合光电探测器的性能和进展，特别关注控制光响应的物理机制，性能和可能的未来研究路径。
Graphene and graphene-based materials exhibit exceptional optical and electrical properties with great promise for novel applications in light detection. However, several challenges prevent the full exploitation of these properties in commercial devices. Such challenges include the limited linear dynamic range (LDR) of graphene-based photodetectors, the lack of efficient generation and extraction of photoexcited charges, the smearing of photoactive junctions due to hot-carriers effects, large-scale fabrication and ultimately the environmental stability of the constituent materials. In order to overcome the aforementioned limits, different approaches to tune the properties of graphene have been explored. A new class of graphene-based devices has emerged where chemical functionalisation, hybridisation with light-sensitising materials and the formation of heterostructures with other 2D materials have led to improved performance, stability or versatility. For example, intercalation of graphene with FeCl is highly stable in ambient conditions and can be used to define photo-active junctions characterized by an unprecedented LDR while graphene oxide (GO) is a very scalable and versatile material which supports the photodetection from UV to THz frequencies. Nanoparticles and quantum dots have been used to enhance the absorption of pristine graphene and to enable high gain thanks to the photogating effect. In the same way, hybrid detectors made from stacked sequences of graphene and layered transition-metal dichalcogenides enabled a class of devices with high gain and responsivity. In this work, we will review the performance and advances in functionalised graphene and hybrid photodetectors, with particular focus on the physical mechanisms governing the photoresponse, the performance and possible future paths of investigation.
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影响因子：
17.1
作者：
De Fazio D;Goykhman I;Yoon D;Bruna M;Eiden A;Milana S;Sassi U;Barbone M;Dumcenco D;Marinov K;Kis A;Ferrari AC
通讯作者：
Ferrari AC
影响因子：
16.6
作者：
De Sanctis A;Amit I;Hepplestone SP;Craciun MF;Russo S
通讯作者：
Russo S
影响因子：
4.6
作者：
Bointon TH;Jones GF;De Sanctis A;Hill-Pearce R;Craciun MF;Russo S
通讯作者：
Russo S
使用等离子体完美吸收器可调谐增强石墨烯光学吸收
影响因子：
4
作者：
Cai, Yijun;Zhu, Jinfeng;Liu, Qing Huo
通讯作者：
Liu, Qing Huo
影响因子：
3.5
作者：
De Sanctis, Adolfo;Barnes, Matthew D.;Russo, Saverio
通讯作者：
Russo, Saverio